Hi, I managed to get out yesterday and work up a load for the Sierra 135g MK, easily got it up to 2500fps but will probably settle on 2460fps for now.SSA small primer brass
Rem. 7-1/2 primer
Sierra 135g MK
28g's of Vhit N130
Bullets seated 0.020" off lands so about 5-6mm too long for mags, single feed only.
Like I said I'll try 2460fps for a while which was 27-1/2 g's of N130.
I plan to try them out at 300 yards next month and will post results if anybody is interested.
Jez.
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